Huawei OptiX RTN 950 IDU Boards ISM6 SL91ISM6

Function and Feature

Description

Basic functions

1. Receives and transmits two channels of IF signals.
2. Provides a management channel to the ODU.
3. Supplies –48 V power to the ODU.

Microwave type

1. Integrated IP microwave
2. SDH microwave

NOTE:

Integrated IP microwave is compatible with Hybrid microwave and Packet microwave.

Service type in Integrated IP microwave

1. Native E1 + Ethernet
2. Native STM-1 + Ethernet

NOTE:

Ethernet services can be Native Ethernet services or PWE3-encapsulated packet services.

One STM-1 service is equivalent to 63 E1 services. The total number of E1 and STM-1 services accessed on each board is less than or equal to 126 (the number of E1 services).

Service type in SDH microwave

1. STM-1
2. 2xSTM-1

NOTE:

If one IF port provides 2xSTM-1 microwave, the other IF port can only provide Integrated IP microwave (without E1/STM-1 services).

Running mode

1. IS6-PLUS mode, in which the board now supports a large capacity. In IS6-PLUS mode, modulation schemes ranging from QPSK to 4096QAM and two extended modulation schemes QPSK Strong and 16QAM Strong are supported. The 112 MHz channel spacing is supported and in this channel spacing, modulation schemes ranging from QPSK to 2048QAM and two extended modulation schemes QPSK Strong and 16QAM Strong are supported.
2. IS6 mode, default mode of the board. In IS6 mode, modulation schemes ranging from QPSK to 4096QAM and two extended modulation schemes QPSK Strong and 16QAM Strong are supported. The 112 MHz channel spacing is supported and in this channel spacing, modulation schemes ranging from QPSK to 2048QAM and two extended modulation schemes QPSK Strong and 16QAM Strong are supported.
3. IS3 mode. In IS3 mode, modulation schemes ranging from QPSK to 2048QAM and four extended modulation schemes QPSK Strong, 16QAM Strong, 512QAM Light, and 1024QAM Light are supported. When working in this mode, the ISM6 board can interconnect with the ISV3 board or the RTN 905.
4. IS2 mode. In IS2 mode, modulation schemes ranging from QPSK to 256QAM are supported. When working in this mode, the ISM6 board can interconnect with the ISU2/ISX2 board.

NOTE:

1. The extended and normal modulation schemes differ in FEC. Strong modulation schemes provide stronger FEC capabilities, which means higher receiver sensitivity but smaller air interface capacity. Light modulation schemes provide otherwise.
2.  

The two IF ports on the ISM6 board must work in the same mode. When one of the two ports on the ISM6 board changes its running mode, the other port changes automatically to the same running mode.

Modulation scheme

1. IS6-PLUS mode: QPSK Strong/QPSK/16QAM Strong/16QAM/32QAM/64QAM/128QAM/256QAM/512QAM/1024QAM/2048QAM/4096QAM
2. IS6 mode: QPSK Strong/QPSK/16QAM Strong/16QAM/32QAM/64QAM/128QAM/256QAM/512QAM/1024QAM/2048QAM/4096QAM
3. IS3 mode: QPSK Strong/QPSK/16QAM Strong/16QAM/32QAM/64QAM/128QAM/256QAM/512QAM/512QAM Light/1024QAM/1024QAM Light/2048QAM
4. IS2 mode: QPSK/16QAM/32QAM/64QAM/128QAM/256QAM

NOTE:

1. In IS3 mode, 2048QAM is supported only when AM is enabled.
2. In IS6 mode, 4096QAM is supported only when AM is enabled.
3. In IS6-PLUS mode, 4096QAM is supported only when AM is enabled.
4. The highest-order modulation scheme that can be used by an IF port is determined based on factors such as the ODU frequency band, XPIC, and channel spacing. For details, see Technical Specifications.

112 MHz channel spacing

Supported (only in IS6/IS6-PLUS mode)

NOTE:

If the 112 MHz channel spacing is configured for one of the two ports on the ISM6 board, the 112 MHz channel spacing is automatically configured for the other port. Similarly, when the channel spacing of a port changes from 112 MHz to another value, the channel spacing of the other port automatically changes to the new value accordingly.

Backplane bus bandwidth

2.5 Gbit/s (working with the CSHU/CSHUA/CSHUF/CSHLF)

NOTE:

Working with the CSH is not supported.

MIMO

Supported

ATPC

Supported

AM

Supported only in Integrated IP microwave

E1 priority

Supported only if Native TDM services transmitted over Integrated IP microwave are E1 services

Ethernet frame header compression

Supported

XPIC

Supported (only between two IF ports on a board)

Anti-theft function

Supported

Microwave working mode

See Technical Specifications.

Link protection

1+1 HSB/FD/SD protection

Supported

NOTE:

1. Intra-board port protection is supported.
2. Inter-board port protection is supported.

N+1 protection

Supported

LAG protection at air interfaces

Supported

Physical link aggregation (PLA/EPLA/EPLA+)

Supported

NOTE:

EPLA/EPLA+ is supported only when the CSHU/CSHUA is used.

Inter-board PLA is not supported.

TDM service protection

SNCP

K byte pass-through

Supported

Ethernet service features

See Table 1-320.

MPLS functions and features

See descriptions of the MPLS/PWE3 functions and features provided in the section about the system control, switching, and timing board.

PWE3 functions and features

Clock

Physical layer synchronization

Air-interface link clock

Physical-layer clock protection

1. Protection based on clock source priorities
2. Protection based on the SSM protocol
3. Protection based on the extended SSM protocol

Packet time synchronization

Supports IEEE 1588v2.

Supports ITU-T G.8275.1.

Packet frequency synchronization

Not supported

DCN

Inband DCN

Supported, with DCN bandwidths configurable

Outband DCN

1. Supports one DCC composed of three DCC bytes for each Integrated IP microwave channel.
2. Supports one DCC composed of D1–D3 bytes, D4–D12 bytes, or D1–D12 bytes for each SDH microwave channel.

O&M

Loopback

1. Supports inloops and outloops at IF ports.
2. Supports inloops and outloops at MUX ports.

Cold reset and warm reset

Supported

PRBS bit error test at IF ports

Supported

Query of board manufacturing information

Supported

Query of board power consumption

Supported

Board temperature monitoring

Supported

Board power monitoring

Supported